dhcpcd-discuss

Graham,
true, the MSRO is only a side discussion not really relevant to your case, except for the priority field that not only applies to the MSRO but has also been retrofitted to the RA "body" itself.
While that shouldn't be an issue here, it looks strange that you see a high priority 01 instead of the default medium priority 00. At least that fits in to some extend why your route table entries show two route entries per destination. The thing I don't understand in your router table: why are there the same routes with just +-1 priority step for eth0 and eth1. What link setup do you use?
Did you already check using rdisc6 (router discovery) tool from the optional ndisc6 package what router advertisements get sent when you poke the routers?
Best regards,Harald

-------- Ursprüngliche Nachricht --------Von: Graham Breed <graham.breed@xxxxxxxxxxxxxx> Datum: 28.09.17  09:58  (GMT+01:00) An: "harald.albrecht" <harald.albrecht@xxxxxxx>, dhcpcd-discuss@xxxxxxxxxxxx Betreff: Re: [dhcpcd-discuss] DHCPv6 addresses being assigned with /128
  prefixes 
On 27/09/17 20:50, harald.albrecht wrote:

> Correct, that's RFC 4191. Very useful, for example, when you have subnets that do not only contain hosts but also downstream routers. Unfortunately, some Linux systems have set the maximum MSRO prefix length to 0 which disables learning of these routes. It can be reenabled via sysctl, but it's unfortunate that this is even necessary.

Yes, looks useful, but I'm not advertising downstream routers so it
shouldn't be required.  According to Wireshark, I have a "Prf High (1)"
field in the Router Advertisement header.  Then I have a Prefix
Information field but no Router Information.


                      Graham

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